package threading;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: qian
 * Date: 2023-01-02
 * Time: 10:16
 */
class Counter{
    public volatile int counter;
    public synchronized  void increase(){
        counter++;
    }
}
public class Demo9 {
    public static void main(String[] args) throws InterruptedException {
        Counter counter=new Counter();
        Thread t1=new Thread(()->{
            for(int i=0;i<50000;i++){
                counter.increase();
            }
        });
        Thread t2=new Thread(()->{
            for(int i=0;i<50000;i++){
                counter.increase();
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(counter.counter);
    }


}
